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Reduced-intensity therapy for pediatric lymphoblastic leukemia: impact of residual disease early in remission induction. Blood 2021; 137:20-28. [PMID: 33410896 DOI: 10.1182/blood.2020007977] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Accepted: 09/02/2020] [Indexed: 12/21/2022] Open
Abstract
Legacy data show that ∼40% of children with acute lymphoblastic leukemia (ALL) were cured with limited antimetabolite-based chemotherapy regimens. However, identifying patients with very-low-risk (VLR) ALL remains imprecise. Patients selected based on a combination of presenting features and a minimal residual disease (MRD) level <0.01% on day 19 of induction therapy had excellent outcomes with low-intensity treatment. We investigated the impact of MRD levels between 0.001% and <0.01% early in remission induction on the outcome of VLR ALL treated with a low-intensity regimen. Between October of 2011 and September of 2015, 200 consecutive patients with B-precursor ALL with favorable clinicopathologic features and MRD levels <0.01%, as assessed by flow cytometry in the bone marrow on day 19 and at the end of induction therapy, received reduced-intensity therapy. The 5-year event-free survival was 89.5% (± 2.2% standard error [SE]), and the overall survival was 95.5% (± 1.5% SE). The 5-year cumulative incidence of relapse (CIR) was 7% (95% confidence interval, 4-11%). MRD levels were between 0.001% and <0.01% on day 19 in 29 patients. These patients had a 5-year CIR that was significantly higher than that of patients with undetectable residual leukemia (17.2% ± 7.2% vs 5.3% ± 1.7%, respectively; P = .02). Our study shows that children with VLR ALL can be treated successfully with decreased-intensity therapy, and it suggests that the classification criteria for VLR can be further refined by using a more sensitive MRD assay.
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Howard SC, Zaidi A, Cao X, Weil O, Bey P, Patte C, Samudio A, Haddad L, Lam CG, Moreira C, Pereira A, Harif M, Hessissen L, Choudhury S, Fu L, Caniza MA, Lecciones J, Traore F, Ribeiro RC, Gagnepain-Lacheteau A. The My Child Matters programme: effect of public–private partnerships on paediatric cancer care in low-income and middle-income countries. Lancet Oncol 2018; 19:e252-e266. [DOI: 10.1016/s1470-2045(18)30123-2] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2017] [Revised: 01/30/2018] [Accepted: 02/08/2018] [Indexed: 12/18/2022]
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Sanddhya NS, Kathick D, Sachdanandam P, Thilagavathy S, Shanthi P. Evaluation of cost effective diagnostic tools in characterisation of Acute Leukemia in Southern India. Technol Health Care 2016; 24:639-46. [PMID: 27080214 DOI: 10.3233/thc-161157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
The incidence of Acute Leukemia (AL) subtypes varies according to geographical distribution and more predominant in developing countries. The aim here was to evaluate the usefulness of cost effective diagnostic tools in characterization of Acute Lymphoblastic Leukemia (ALL) in resource poor population. One hundred and two AL cases were diagnosed. For diagnosis, cytochemical analysis and immunohistochemistry were performed. Among the children < 12 years, ALL was 64.3% while AML accounted for 30%. In patients > 12 years, ALL was 59.4% and AML was 31.3%. The B-ALL occurred most frequently than T-ALL in both the age groups while based on immunophenotyping in AML, CD13 was the most commonly expressed antigen. Hence, cost effective diagnostic tools namely the immunophenotyping and cytochemistry are useful and improve accuracy and rapidly risk-stratify patients that were diagnosed with acute leukemia.
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Affiliation(s)
- N S Sanddhya
- Department of Pathology, Dr. ALM Post-Graduate Institute of Basic Medical Sciences, University of Madras, Chennai, India
| | - D Kathick
- Department of Pathology, Dr. ALM Post-Graduate Institute of Basic Medical Sciences, University of Madras, Chennai, India
| | - P Sachdanandam
- Department of Pathology, Dr. ALM Post-Graduate Institute of Basic Medical Sciences, University of Madras, Chennai, India
| | - S Thilagavathy
- Department of Hematology Oncology, Institute of Child Health and Hospital for Children, Egmore, Chennai, India
| | - P Shanthi
- Department of Pathology, Dr. ALM Post-Graduate Institute of Basic Medical Sciences, University of Madras, Chennai, India
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Ribeiro RC, Antillon F, Pedrosa F, Pui CH. Global Pediatric Oncology: Lessons From Partnerships Between High-Income Countries and Low- to Mid-Income Countries. J Clin Oncol 2015; 34:53-61. [PMID: 26578620 DOI: 10.1200/jco.2015.61.9148] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Partnerships between medical institutions in high-income countries (HICs) and low- to mid-income countries (LMICs) have succeeded in initiating and expanding pediatric cancer control efforts. The long-term goal is consistently a sustainable national pediatric cancer program. Here, we review the elements required for successful implementation, development, and long-term sustainability of pediatric cancer programs in LMICs that first arise as partnerships with institutions in HICs. Although plans must be adapted to each country's resources, certain components are unfailingly necessary. First, an essential step is provision of treatment regardless of ability to pay. Second, financial support for program development and long-term sustainability must be sought from sources both international and local, public and private. A local leader, typically a well-trained pediatric oncologist who devotes full-time effort to the project, should direct medical care and collaborate with hospital, governmental, and community leadership and international agencies. Third, nurses must be trained in pediatric cancer care and allowed to practice this specialty full-time. It is also essential to develop a grassroots organization, such as a foundation, dedicated solely to pediatric oncology. Its members must be trained and educated to provide pediatric cancer advocacy, fundraising, and (in concert with government) program sustainability. Finally, a project mentor in the HIC is crucial and should explore the possibility of collaborative research in the LMIC, which may offer significant opportunities. Relationships between the partnership's leaders and influential individuals in the community, hospital, grassroots foundation, and government will lay the foundation for productive collaboration and a sustainable pediatric oncology program.
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Affiliation(s)
- Raul C Ribeiro
- Raul C. Ribeiro and Ching-Hon Pui, St Jude Children's Research Hospital, Memphis, TN; Federico Antillon, Unidad Nacional de Oncologia Pediatrica and Universidad Francisco Marroquin, Guatemala City, Guatemala; and Francisco Pedrosa, Instituto de Medicina Integral Fernando Figueira, Recife, Brazil.
| | - Federico Antillon
- Raul C. Ribeiro and Ching-Hon Pui, St Jude Children's Research Hospital, Memphis, TN; Federico Antillon, Unidad Nacional de Oncologia Pediatrica and Universidad Francisco Marroquin, Guatemala City, Guatemala; and Francisco Pedrosa, Instituto de Medicina Integral Fernando Figueira, Recife, Brazil
| | - Francisco Pedrosa
- Raul C. Ribeiro and Ching-Hon Pui, St Jude Children's Research Hospital, Memphis, TN; Federico Antillon, Unidad Nacional de Oncologia Pediatrica and Universidad Francisco Marroquin, Guatemala City, Guatemala; and Francisco Pedrosa, Instituto de Medicina Integral Fernando Figueira, Recife, Brazil
| | - Ching-Hon Pui
- Raul C. Ribeiro and Ching-Hon Pui, St Jude Children's Research Hospital, Memphis, TN; Federico Antillon, Unidad Nacional de Oncologia Pediatrica and Universidad Francisco Marroquin, Guatemala City, Guatemala; and Francisco Pedrosa, Instituto de Medicina Integral Fernando Figueira, Recife, Brazil
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Rivera GK, Ribeiro RC. Improving treatment of children with acute lymphoblastic leukemia in developing countries through technology sharing, collaboration and partnerships. Expert Rev Hematol 2014; 7:649-57. [PMID: 25174644 DOI: 10.1586/17474086.2014.949233] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Cure rates for pediatric acute lymphoblastic leukemia differ markedly in higher- and lower-income countries due to disparate hospital infrastructure and resources. Where means are limited, treatment-related mortality is higher and compliance may be suboptimal. Upfront risk assignment is aimed at individualizing therapy according to presenting features in order to avoid over- or under-treatment. However, the necessary technical resources and expertise are not always readily available. The authors provide suggestions for management of childhood acute lymphoblastic leukemia in developing nations. To improve patient care locally, the authors recommend that communication technology be used to sustain partnerships between sponsoring and partner pediatric oncology programs. The aims of these collaborations should be to prioritize resources, identify existing problems and reduce treatment intensity and hence treatment-related morbidity and mortality in patients at lower risk of relapse.
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Affiliation(s)
- Gaston K Rivera
- International Outreach Program and Department of Oncology, St Jude Children's Research Hospital, 262 Danny Thomas Place, Memphis, TN 38105, USA
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Barr RD, Antillón Klussmann F, Baez F, Bonilla M, Moreno B, Navarrete M, Nieves R, Peña A, Conter V, De Alarcón P, Howard SC, Ribeiro RC, Rodriguez-Galindo C, Valsecchi MG, Biondi A, Velez G, Tognoni G, Cavalli F, Masera G. Asociación de Hemato-Oncología Pediátrica de Centro América (AHOPCA): a model for sustainable development in pediatric oncology. Pediatr Blood Cancer 2014; 61:345-54. [PMID: 24376230 DOI: 10.1002/pbc.24802] [Citation(s) in RCA: 65] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/08/2013] [Accepted: 09/10/2013] [Indexed: 11/06/2022]
Abstract
Bridging the survival gap for children with cancer, between those (the great majority) in low and middle income countries (LMIC) and their economically advantaged counterparts, is a challenge that has been addressed by twinning institutions in high income countries with centers in LMIC. The long-established partnership between a Central American consortium--Asociación de Hemato-Oncología Pediátrica de Centro América (AHOPCA)--and institutions in Europe and North America provides a striking example of such a twinning program. The demonstrable success of this endeavor offers a model for improving the health outcomes of children with cancer worldwide. As this remarkable enterprise celebrates its 15th anniversary, it is appropriate to reflect on its origin, subsequent growth and development, and the lessons it provides for others embarking on or already engaged in similar journeys. Many challenges have been encountered and not all yet overcome. Commitment to the endeavor, collaboration in its achievements and determination to overcome obstacles collectively are the hallmarks that stamp AHOPCA as a particularly successful partnership in advancing pediatric oncology in the developing world.
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Affiliation(s)
- Ronald D Barr
- Departments of Pediatrics, Pathology and Medicine, McMaster University and McMaster Children's Hospital, Hamilton, Ontario, Canada
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Yeoh AEJ, Tan D, Li CK, Hori H, Tse E, Pui CH. Management of adult and paediatric acute lymphoblastic leukaemia in Asia: resource-stratified guidelines from the Asian Oncology Summit 2013. Lancet Oncol 2013; 14:e508-23. [PMID: 24176570 PMCID: PMC4059516 DOI: 10.1016/s1470-2045(13)70452-2] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Survival for adults and children with acute lymphoblastic leukaemia has risen substantially in recent years because use of improved risk-directed treatments and supportive care has widened. In nearly all developed countries, multidisciplinary panels of leukaemia experts have formulated clinical practice guidelines in which standard treatment approaches are recommended on the basis of current evidence. However, those guidelines do not take into account resource limitations in low-income countries, including financial and technical challenges. In Asia, huge disparities in economy and infrastructure exist between countries, and even among different regions in some large countries. At a consensus session held as part of the 2013 Asian Oncology Summit in Bangkok, Thailand, a panel of experts summarised recommendations for management of adult and paediatric acute lymphoblastic leukaemia. Strategies were developed for Asian countries on the basis of available financial, skill, and logistical resources and were stratified in a four-tier system according to the resources available in a particular country or region (basic, limited, enhanced, and maximum).
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Affiliation(s)
- Allen E J Yeoh
- Department of Paediatrics, National University Hospital, National University of Singapore, Singapore
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Hopkins J, Burns E, Eden T. International twinning partnerships: An effective method of improving diagnosis, treatment and care for children with cancer in low-middle income countries. J Cancer Policy 2013. [DOI: 10.1016/j.jcpo.2013.06.001] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Hunger SP, Sung L, Howard SC. Treatment strategies and regimens of graduated intensity for childhood acute lymphoblastic leukemia in low-income countries: A proposal. Pediatr Blood Cancer 2009; 52:559-65. [PMID: 19127567 DOI: 10.1002/pbc.21889] [Citation(s) in RCA: 72] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Cure rates for children with acute lymphoblastic leukemia (ALL) are 80-85% in high-income countries (HICs) in North America and Western Europe. However, cure rates are much lower in many low-income countries (LICs), where most cases of ALL occur. Over the past several decades partnerships ("twinning") between HIC and LIC pediatric oncology programs have led to major improvements in outcome for children with ALL in some LICs, often by developing time and resource intensive relationships that allow LIC centers to treat children with regimens similar or identical to those used in HICs. However, the resources are not available in most LICs to allow immediate introduction of intensive ALL treatment regimens similar to those used in HICs. With these thoughts in mind, we present a proposal for a systematic and graduated approach to ALL diagnosis, risk classification, and treatment in LICs. We have based the strategy and the proposed regimens on those developed by the Children's Cancer Group (CCG) and Children's Oncology Group (COG) over the past several decades, beginning with a first level regimen similar to CCG therapy of the early 1980s and then layering on successive treatment intensifications proven effective in randomized clinical trials. Simple monitoring rules are included to help centers decide when they are ready to add new treatment components. This proposal provides a framework that LIC centers can use to provide effective ALL therapy, particularly in regions of the world where few children are currently being cured.
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Affiliation(s)
- Stephen P Hunger
- The Children's Hospital and the Department of Pediatrics, University of Colorado Denver School of Medicine, Aurora, Colorado 80045, USA.
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Ribeiro RC, Steliarova-Foucher E, Magrath I, Lemerle J, Eden T, Forget C, Mortara I, Tabah-Fisch I, Divino JJ, Miklavec T, Howard SC, Cavalli F. Baseline status of paediatric oncology care in ten low-income or mid-income countries receiving My Child Matters support: a descriptive study. Lancet Oncol 2008; 9:721-9. [PMID: 18672210 DOI: 10.1016/s1470-2045(08)70194-3] [Citation(s) in RCA: 181] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
BACKGROUND Childhood-cancer survival is dismal in most low-income countries, but initiatives for treating paediatric cancer have substantially improved care in some of these countries. The My Child Matters programme was launched to fund projects aimed at controlling paediatric cancer in low-income and mid-income countries. We aimed to assess baseline status of paediatric cancer care in ten countries that were receiving support (Bangladesh, Egypt, Honduras, Morocco, the Philippines, Senegal, Tanzania, Ukraine, Venezuela, and Vietnam). METHODS Between Sept 5, 2005, and May 26, 2006, qualitative face-to-face interviews with clinicians, hospital managers, health officials, and other health-care professionals were done by a multidisciplinary public-health research company as a field survey. Estimates of expected numbers of patients with paediatric cancer from population-based data were used to project the number of current and future patients for comparison with survey-based data. 5-year survival was postulated on the basis of the findings of the interviews. Data from the field survey were statistically compared with demographic, health, and socioeconomic data from global health organisations. The main outcomes were to assess baseline status of paediatric cancer care in the countries and postulated 5-year survival. FINDINGS The baseline status of paediatric oncology care varied substantially between the surveyed countries. The number of patients reportedly receiving medical care (obtained from survey data) differed markedly from that predicted by population-based incidence data. Management of paediatric cancer and access to care were poor or deficient (ie, nonexistent, unavailable, or inconsistent access for most children with cancer) in seven of the ten countries surveyed, and accurate baseline data on incidence and outcome were very sparse. Postulated 5-year survival were: 5-10% in Bangladesh, the Philippines, Senegal, Tanzania, and Vietnam; 30% in Morocco; and 40-60% in Egypt, Honduras, Ukraine, and Venezuela. Postulated 5-year survival was directly proportional to several health indicators (per capita annual total health-care expenditure [Pearson's r(2)=0.760, p=0.001], per capita gross domestic product [r(2)=0.603, p=0.008], per capita gross national income [r(2)=0.572, p=0.011], number of physicians [r(2)=0.560, p=0.013] and nurses [r(2)=0.506, p=0.032] per 1000 population, and most significantly, annual government health-care expenditure per capita [r(2)=0.882, p<0.0001]). INTERPRETATION Detailed surveys can provide useful data for baseline assessment of the status of paediatric oncology, but cannot substitute for national cancer registration. Alliances between public, private, and international agencies might rapidly improve the outcome of children with cancer in these countries.
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Affiliation(s)
- Raul C Ribeiro
- Department of Oncology and International Outreach Program, St Jude Children's Research Hospital, Memphis, TN 38105, USA.
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Global child health priorities: What role for paediatric oncologists? Eur J Cancer 2008; 44:2388-96. [DOI: 10.1016/j.ejca.2008.07.022] [Citation(s) in RCA: 111] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2008] [Revised: 06/26/2008] [Accepted: 07/10/2008] [Indexed: 11/19/2022]
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Howard SC, Metzger ML, Wilimas JA, Quintana Y, Pui CH, Robison LL, Ribeiro RC. Childhood cancer epidemiology in low-income countries. Cancer 2008; 112:461-72. [PMID: 18072274 DOI: 10.1002/cncr.23205] [Citation(s) in RCA: 168] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Global studies of childhood cancer provide clues to cancer etiology, facilitate prevention and early diagnosis, identify biologic differences, improve survival rates in low-income countries (LIC) by facilitating quality improvement initiatives, and improve outcomes in high-income countries (HIC) through studies of tumor biology and collaborative clinical trials. Incidence rates of cancer differ between various ethnic groups within a single country and between various countries with similar ethnic compositions. Such differences may be the result of genetic predisposition, early or delayed exposure to infectious diseases, and other environmental factors. The reported incidence of childhood leukemia is lower in LIC than in more prosperous countries. Registration of childhood leukemia requires recognition of symptoms, rapid access to primary and tertiary medical care (a pediatric cancer unit), a correct diagnosis, and a data management infrastructure. In LIC, where these services are lacking, some children with leukemia may die before diagnosis and registration. In this environment, epidemiologic studies would seem to be an unaffordable luxury, but in reality represent a key element for progress. Hospital-based registries are both feasible and essential in LIC, and can be developed using available training programs for data managers and the free online Pediatric Oncology Networked Data Base (www.POND4kids.org), which allows collection, analysis, and sharing of data.
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Affiliation(s)
- Scott C Howard
- Department of Oncology, St. Jude Children's Research Hospital, Memphis, Tennessee 38105-2794, USA.
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Janossy G. The changing pattern of "smart" flow cytometry (S-FC) to assist the cost-effective diagnosis of HIV, tuberculosis, and leukemias in resource-restricted conditions. Biotechnol J 2008; 3:32-42. [PMID: 18064612 DOI: 10.1002/biot.200700200] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
There is a need to introduce cytometry into areas of the globe that have remained virtually untouched by modern laboratory medicine. With the demand to carry out tests on 100,000 s of individuals requiring antiretroviral therapy (ART), flow cytometry must remain simple and cost-effective - while being sustainable and industry supported as well as proven by quality assessment (QA). This outlook is referred to as "smart flow cytometry" (S-FC). There are five main areas where the power of S-FC is demonstrated. These are: (i) the use of CD45 to assist precise cell counting in blood and tissue samples; (ii) the primary CD4 gating to count CD4+ T cells in patients waiting for ART, including the combination (i) and (ii) in the panleucogating (PLG) protocol; (iii) monitoring of human immunodeficiency virus (HIV+) patients during ART by the decreasing levels of lymphocyte activation in a CD8/CD38 test - leading to economies of viral-load assays; (iv) in tuberculosis and HIV-TB coinfections the use of TB-antigen-stimulated cytokine-synthetic CD4+ T cells to identify active disease; and (v) the utilization of "minimal residual disease (MRD)-Lite" technology in patients 19 days after the start of antileukemic therapy to detect MRD. These methods of S-FC have been successfully introduced in "resource-restricted" countries with international and local QA.
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Affiliation(s)
- George Janossy
- Royal Free and University College Medical School, University College London, London, UK.
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Howard SC, Marinoni M, Castillo L, Bonilla M, Tognoni G, Luna-Fineman S, Antillon F, Valsecchi MG, Pui CH, Ribeiro RC, Sala A, Barr RD, Masera G. Improving outcomes for children with cancer in low-income countries in Latin America: a report on the recent meetings of the Monza International School of Pediatric Hematology/Oncology (MISPHO)-Part I. Pediatr Blood Cancer 2007; 48:364-9. [PMID: 16883601 DOI: 10.1002/pbc.21003] [Citation(s) in RCA: 96] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
The difference in survival for children diagnosed with cancer between high- and low-income countries (LIC) continues to widen as curative therapies are developed in the former but not implemented in the latter. In 1996, the Monza International School of Pediatric Hematology/Oncology (MISPHO) was founded in an attempt to narrow this survival gap. During its sixth and seventh meetings, members recognized the problem of lack of affordability of essential drugs to treat childhood cancer in many LIC, and initiated an advocacy program. In 1998, MISPHO spawned a collaboration of Central American pediatric oncology centers: the Asociación de Hemato-Oncología Pediátrica Centroamericana (AHOPCA). AHOPCA members reported preliminary findings from several of the 10 cooperative protocols that are currently in progress. In 2003, a second regional collaborative group was formed that includes seven centers in South America. Twinning programs between MISPHO centers and centers in high-income countries (HIC) have proven invaluable to harness the resources of these centers to improve pediatric oncology care in LIC. MISPHO educational efforts include oncology nursing, supportive care, cancer-specific updates, epidemiology, and clinical research methods. Educational efforts are facilitated by educational content and online conferencing via www.cure4kids.org. Identifying preventable causes of abandonment of therapy and documenting the nutritional status of patients treated at MISPHO centers are areas of active research.
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Affiliation(s)
- Scott C Howard
- International Outreach Program and Department of Hematology/Oncology, St. Jude Children's Research Hospital, Memphis, Tennessee, USA.
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